Multi-degree-of-freedom adjustment auxiliary device for ultrasound-guided blood vessel puncture

Abstract

The present application relates to the technical field of blood vessel puncture, in particular to an ultrasonic-guided blood vessel puncture multi-degree-of-freedom adjustment auxiliary device, which comprises a first adhesive tape, a rubber tape and a second adhesive tape, one side of the rubber tape is provided with the first adhesive tape, the other side of the rubber tape is fixedly connected with a limiting frame, the lower end of the limiting frame is provided with the second adhesive tape, and the upper end of the limiting frame is fixedly provided with an auxiliary adjustment structure; the auxiliary adjustment structure is used for multi-angle adjustment of a puncture needle, the puncture needle is in communication with a connecting unit, an extension adjusting rod changes the height of the puncture needle, the fixed combined connecting rod drives the extension adjusting rod to transversely adjust, the transverse position of the puncture needle is changed, the fixed combined connecting rod is rotatably connected on the upper end, the angle of the puncture needle is changed, and the half-tooth disc is used for limiting, a supporting unit is used for supporting and protecting the extension adjusting rod, and the connecting unit adopts a separable design. Through the structure, the blood vessel puncture work is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of blood vessel puncture, in particular to an ultrasonic-guided blood vessel puncture multi-degree-of-freedom adjustment auxiliary device. BACKGROUND

[0002] Traditional blood vessel puncture is mainly based on anatomical positioning for blind puncture, but in clinical practice, when anatomical variations, poor blood vessel conditions and other conditions are encountered, ultrasonic-guided blood vessel puncture gradually shows its advantages and necessity. Using ultrasonic guidance during blood vessel puncture can clearly see the structure of the blood vessel and the adjacent structures such as nerves and muscles around the blood vessel, and can quickly identify the blood vessel, thereby achieving the purposes of improving the success rate of puncture, shortening the puncture time, and avoiding serious complications.

[0003] According to Chinese Patent Publication No. CN116473636A, an ultrasonic-guided blood vessel puncture device and method are disclosed. By providing a rotating shaft, a guide block, a guide hole, a puncture needle, and an auxiliary mechanism, the rotating shaft can drive the guide block to rotate along the limiting groove. It can be used with different needle insertion sites of patients, accurately adjust the inclination angle of the guide block, support and limit the puncture needle with the guide hole, improve the stability of the needle, avoid the needle from deviating during the needle insertion process, the inner walls of the clamping block one and the clamping block two are in close contact with the outer wall of the puncture needle, thereby fixing the position of the puncture needle, avoiding the needle from deviating due to pulling, improving the stability of the puncture needle when it contacts the lesion, avoiding the needle sheath from shaking when the needle core is removed, the output shaft of the motor drives the winding roller to rotate, the rope is wound on the winding roller, the rope wound on the winding roller drives the needle core to separate from the needle sheath, so that only one needle inserter can complete the puncture process, improving the simplicity of operation and saving labor.

[0004] At present, the existing ultrasonic-guided blood vessel puncture auxiliary device and the above-mentioned case cannot be adjusted at multiple angles during use, which is not flexible during use, and cannot be quickly adjusted and limited, so the above-mentioned problems are improved. SUMMARY

[0005] In view of the problems in the prior art, the present application provides an ultrasonic-guided blood vessel puncture multi-degree-of-freedom adjustment auxiliary device.

[0006] The technical scheme adopted by the present application to solve its technical problems is: an ultrasonic-guided blood vessel puncture multi-degree-of-freedom adjustment auxiliary device, comprising a first adhesive tape, a rubber band and a second adhesive tape, one side of the rubber band is provided with the first adhesive tape, the other side of the rubber band is fixedly connected with a limiting frame, the lower end of the limiting frame is provided with the second adhesive tape, and the upper end of the limiting frame is fixedly provided with an auxiliary adjustment structure.

[0007] An auxiliary adjustment structure is used for multi-angle adjustment of the puncture needle. The puncture needle is connected to the connecting unit. The telescopic adjustment rod changes the height of the puncture needle, and the fixed combination linkage drives the telescopic adjustment rod to adjust laterally, changing the lateral position of the puncture needle. The fixed combination linkage is rotated on the upper part with the gear to change the angle of the puncture needle, and is limited by the half-tooth plate. The support unit is used to support and protect the telescopic adjustment rod, and the connecting unit adopts a detachable design.

[0008] Specifically, the auxiliary adjustment structure includes a puncture needle and an auxiliary adjustment component. The puncture needle is inserted into the upper limit of the auxiliary adjustment component, and the puncture needle can slide and adjust on the auxiliary adjustment component.

[0009] Specifically, the auxiliary adjustment component includes a support mechanism and a control mechanism. The control mechanism is rotatably connected to the support mechanism. The support mechanism includes a connecting unit, a cooperating gear, a telescopic adjustment rod, and a hinge shaft. The telescopic adjustment rod is fixedly mounted on the cooperating gear. The upper end of the telescopic adjustment rod is hinged to the connecting unit, and the middle part of the telescopic adjustment rod is fixedly mounted on the hinge shaft.

[0010] Specifically, the connecting unit includes a screw-on sleeve, an insert rod, and an adapter slot. One side of the adapter slot is inserted into the first docking shaft, and the other side of the adapter slot is inserted into the second docking shaft. An insert rod is also fixedly provided on the adapter slot. The insert rod is screwed on by the screw-on sleeve to limit and fix the insert rod to the second docking shaft. A rotating connecting rod is fixedly connected to the first docking shaft.

[0011] Specifically, the control mechanism includes a fixed platform and an adapter fixing block. The adapter fixing block is fixedly provided at the lower end of the fixed platform, a first track frame is fixedly connected to the upper end of the fixed platform, a second track frame is fixedly connected to the upper end of the first track frame, a limiting unit is slidably provided on the first track frame and the second track frame, and a support unit is fixedly connected to the center side end of the fixed platform.

[0012] Specifically, the support unit includes a fixed hinge seat, on which a hydraulic driven rod is hinged, and on which a hinged mating rod is hinged.

[0013] Specifically, the limiting unit includes an arc-shaped guide frame and a fixed combination link. The fixed combination link is fixedly connected to the center of the arc-shaped guide frame. A first connecting oil pipe is provided at the front end of the fixed combination link. A pressing seat is telescopically connected to the first connecting oil pipe. A second hydraulic seat is connected to the upper end of the first connecting oil pipe. An elastic limiting telescopic block is telescopically connected to the rear end of the second hydraulic seat.

[0014] Specifically, an adapter block is fixedly connected to the top of the arc-shaped guide frame, and a first hydraulic seat is fixedly installed on the adapter block. The lower end of the first hydraulic seat controls the extension and retraction adjustment of the half-tooth disc, and a steel wire rope is provided on the first hydraulic seat. The lower end of the steel wire rope is directly connected to the half-tooth disc, and the other side of the steel wire rope is connected to the mating and connecting seat. The steel wire rope is fixed to the trigger seat.

[0015] Specifically, the mating gear is rotatably connected to the fixed combination connecting rod, the puncture needle is connected to the central groove of the adapter block, the hinge shaft is fixedly connected to the hinge mating rod, the fixed hinge seat is fixedly connected to the fixed platform, and the fixed platform is fixedly connected to the limiting frame through the adapter fixing block.

[0016] Specifically, the trigger seat moves the wire rope by lifting, causing the wire rope to move the half-tooth disc upward. The half-tooth disc meshes with the cooperating gear. The limit of the cooperating gear is eliminated by lifting. The rotating connecting rod and the telescopic adjusting rod are rotated. The first connecting oil pipe and the fixed combination connecting rod slide on the first track frame. The elastic limit telescopic block is limited and connected to the second track frame.

[0017] The beneficial effects of this invention are:

[0018] First, this invention facilitates fixing by using a first bonding strip, a rubber strip, a second bonding strip, and a limiting frame. The first and second bonding strips can be connected and fixed for winding and limiting. The limiting frame supports the auxiliary adjustment structure, ensuring its horizontal position. The auxiliary adjustment components within the auxiliary adjustment structure limit the puncture needle, allowing it to be adjusted at multiple angles. The gear can rotate on the fixed connecting rod, changing the angles of the telescopic adjustment rod, the hinge shaft, and the connecting unit. This allows the connecting unit to drive the puncture needle for position adjustment. Simultaneously, the telescopic adjustment rod can extend and retract, changing the distance between the puncture needle and the gear, thus facilitating fine adjustments.

[0019] Second, the present invention facilitates the adjustment of the angle of the puncture needle by setting a limiting unit, and also facilitates the limiting of the puncture needle. When adjustment is needed, the trigger seat is pulled to drive the steel wire rope to move, causing the half-tooth disc and the first hydraulic seat to retract, canceling the meshing connection between the half-tooth disc and the cooperating gear. At this time, the cooperating gear can be rotated for adjustment. At the same time, the pressing seat and the fixed combination linkage can slide and adjust on the first track frame, which can significantly change the lateral position of the puncture needle. After reaching the appropriate position, the pressing seat can be released, and the elastic limiting telescopic block can limit and fix it to the second track frame. The setting of the support unit enhances the support and protection of the support mechanism, and the connecting unit adopts a separable design. The puncture needle passes through the center of the adapter slot block, and the rotating screw sleeve can cancel the connection between the first docking shaft and the second docking shaft, thereby facilitating the subsequent removal of the first bonding belt, rubber belt, second bonding belt, auxiliary adjustment structure, and limiting frame. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0022] Figure 2 This is a side view three-dimensional structural diagram of the main body in this invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the main body from the rear view in this invention;

[0024] Figure 4 This is a perspective view of the auxiliary adjustment structure in this invention;

[0025] Figure 5 This is a perspective view of the auxiliary adjustment component in this invention;

[0026] Figure 6 This is a perspective view of the support mechanism in this invention;

[0027] Figure 7 This is a split view of the connecting unit in this invention;

[0028] Figure 8 This is a three-dimensional structural diagram of the control mechanism in this invention;

[0029] Figure 9 This is a three-dimensional structural diagram of the support unit in this invention;

[0030] Figure 10 This is a three-dimensional structural diagram of the limiting unit in this invention.

[0031] In the diagram: 1-First bonding strip, 2-Rubber strip, 3-Second bonding strip, 4-Auxiliary adjustment structure, 5-Limiting frame, 6-Punch needle, 7-Auxiliary adjustment component, 8-Support mechanism, 9-Control mechanism, 10-Connecting unit, 11-Matching gear, 12-Telescopic adjustment rod, 13-Hinge shaft, 14-Turning sleeve, 15-Embedding rod, 16-Adaptor slot, 17-First docking shaft, 18-Rotating connecting rod, 19-Second docking shaft, 20-Support unit, 21-Limiting unit 22-Fixed platform, 23-Adaptive fixed block, 24-First track frame, 25-Second track frame, 26-Fixed hinge seat, 27-Hydraulic driven rod, 28-Hinged mating rod, 29-Adaptive block, 30-First hydraulic seat, 31-Half toothed disc, 32-Arc-shaped guide frame, 33-Elastic limit telescopic block, 34-Second hydraulic seat, 35-First connecting oil pipe, 36-Pressing seat, 37-Fixed combination connecting rod, 38-Wire rope, 39-Matching connecting seat, 40-Trigger seat. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] The invention will be further described below with reference to the accompanying drawings. Example

[0034] like Figures 1-10 As shown, the ultrasound-guided vascular puncture multi-degree-of-freedom adjustment auxiliary device of the present invention includes a first adhesive band 1, a rubber band 2 and a second adhesive band 3. The first adhesive band 1 is provided on one side of the rubber band 2, and a limiting frame 5 is fixedly connected to the other side of the rubber band 2. The second adhesive band 3 is provided at the lower end of the limiting frame 5, and an auxiliary adjustment structure 4 is fixedly provided at the upper end of the limiting frame 5.

[0035] The auxiliary adjustment structure 4 is used for multi-angle adjustment of the puncture needle 6. The puncture needle 6 is connected to the connecting unit 10. The telescopic adjustment rod 12 changes the height of the puncture needle 6, and the fixed combination connecting rod 37 drives the telescopic adjustment rod 12 to adjust laterally, changing the lateral position of the puncture needle 6. The fixed combination connecting rod 37 is rotated and connected with the gear 11 to change the angle of the puncture needle 6, and is limited by the half-tooth plate 31. The support unit 20 is used to support and protect the telescopic adjustment rod 12, and the connecting unit 10 adopts a separable design.

[0036] The auxiliary adjustment structure 4 includes a puncture needle 6 and an auxiliary adjustment component 7. The puncture needle 6 is inserted into the upper limit of the auxiliary adjustment component 7, and the puncture needle 6 can slide and adjust on the auxiliary adjustment component 7. First, it is wrapped by the second adhesive tape 3, and then the first adhesive tape 1 and the second adhesive tape 3 are bonded together to limit the position. The rubber tape 2 can be stretched. The second adhesive tape 3 is provided with a limiting frame 5. The limiting frame 5 is in a horizontal state. The puncture needle 6 is adjusted by the auxiliary adjustment component 7.

[0037] The auxiliary adjustment component 7 includes a support mechanism 8 and a control mechanism 9. The support mechanism 8 is rotatably connected to the control mechanism 9. The support mechanism 8 includes a connecting unit 10, a mating gear 11, a telescopic adjustment rod 12, and a hinge shaft 13. The telescopic adjustment rod 12 is fixedly mounted on the mating gear 11. The connecting unit 10 is hinged to the upper end of the telescopic adjustment rod 12, and the hinge shaft 13 is fixedly mounted in the middle of the telescopic adjustment rod 12. The first bonding tape 1, the rubber tape 2, the second bonding tape 3, and the limiting frame 5 facilitate fixing. The first bonding tape 1 and the second bonding tape 3 can be connected and fixed for winding and limiting. The limiting frame 5 supports the auxiliary adjustment structure 4 to ensure the horizontal position of the auxiliary adjustment structure 4. The auxiliary adjustment component 7 inside the auxiliary adjustment structure 4 is used to limit the puncture needle 6, so that the puncture needle 6 can be adjusted at multiple angles. The gear 11 can rotate on the fixed combination connecting rod 37 to change the angle of the telescopic adjustment rod 12, the hinge shaft 13, and the connecting unit 10, so that the connecting unit 10 drives the puncture needle 6 to adjust its position. At the same time, the telescopic adjustment rod 12 can be extended and retracted to change the distance between the puncture needle 6 and the gear 11, thus making it easier to make fine adjustments.

[0038] The connecting unit 10 includes a screw-on sleeve 14, an insert rod 15, and an adapter slot 16. One side of the adapter slot 16 is inserted into the first docking shaft 17, and the other side is inserted into the second docking shaft 19. The adapter slot 16 is also fixedly provided with the insert rod 15. The insert rod 15 is screwed on by the screw-on sleeve 14, so that the insert rod 15 is limited and fixed to the second docking shaft 19. A rotating connecting rod 18 is fixedly connected to the first docking shaft 17. The puncture needle 6 is inserted into the adapter slot 16 to perform puncture treatment. The above steps can be readjusted to facilitate puncture. After puncture, the screw-on sleeve 14 is rotated to remove the squeezing contact between the screw-on sleeve 14 and the second docking shaft 19. At this time, the first docking shaft 17, the second docking shaft 19 and the adapter slot 16 can be separated, so as to facilitate the disassembly of the other parts of the auxiliary adjustment structure 4. The adapter slot 16 can fit the skin and is fixed by medical tape.

[0039] The control mechanism 9 includes a fixed platform 22 and an adapter fixed block 23. The adapter fixed block 23 is fixedly provided at the lower end of the fixed platform 22. A first track frame 24 is fixedly connected to the upper end of the fixed platform 22. A second track frame 25 is fixedly connected to the upper end of the first track frame 24. Limiting units 21 are slidably provided on the first track frame 24 and the second track frame 25. A support unit 20 is fixedly connected to the center side end of the fixed platform 22.

[0040] The support unit 20 includes a fixed hinge seat 26, on which a hydraulic driven rod 27 is hinged, and on which a hinge mating rod 28 is hinged. When the telescopic adjustment rod 12 is adjusted, the support unit 20 adjusts accordingly. The hinge mating rod 28 is connected to the hinge shaft 13. The change in the position of the hinge shaft 13 drives the hydraulic driven rod 27 to telescopically adjust accordingly. At the same time, the hydraulic driven rod 27 can rotate and engage through the fixed hinge seat 26 at the bottom to achieve angle-matching support work. The adapter fixing block 23 is pressed and fixed with the limiting frame 5 for easy installation.

[0041] The limiting unit 21 includes an arc-shaped guide frame 32 and a fixed combination connecting rod 37. The fixed combination connecting rod 37 is fixedly connected to the center of the arc-shaped guide frame 32. The front end of the fixed combination connecting rod 37 is provided with a first connecting oil pipe 35. A pressing seat 36 is telescopically connected to the first connecting oil pipe 35. A second hydraulic seat 34 is connected to the upper end of the first connecting oil pipe 35. An elastic limiting telescopic block 33 is telescopically connected to the rear end of the second hydraulic seat 34. When the trigger seat 40 is pulled, the trigger seat 40 drives the wire rope 38 to pull on the cooperating connecting seat 39. When the wire rope 38 extends, it can drive the semi-toothed disc 31 to a longitudinal position, so that the semi-toothed disc 31 is no longer engaged with the mating gear 11. At this time, the user rotates the telescopic adjustment rod 12, so that the telescopic adjustment rod 12 rotates on the fixed combination connecting rod 37 through the mating gear 11 to adjust the angle position. Then, the trigger seat 40 is released. At this time, the first hydraulic seat 30 controls the semi-toothed disc 31 to reset, so that the semi-toothed disc 31 engages with the mating gear 11 and limits the mating gear 11. At this time, the mating gear 11 cannot rotate.

[0042] An adapter block 29 is fixedly connected to the top of the arc-shaped guide frame 32. A first hydraulic seat 30 is fixedly installed on the adapter block 29. The lower end of the first hydraulic seat 30 controls the extension and retraction adjustment of the semi-tooth disc 31. A steel wire rope 38 is provided on the first hydraulic seat 30. The lower end of the steel wire rope 38 is directly connected to the semi-tooth disc 31. The other side of the steel wire rope 38 is connected to the mating connecting seat 39. The steel wire rope 38 is fixed to the trigger seat 40. Pressing triggers the pressing seat 36, which pushes the oil, causing the second hydraulic seat 34 at the top of the first connecting oil pipe 35 to extend and change the position of the elastic limiting telescopic block 33. At this time, the elastic limiting telescopic block 33 is not limited with the second track frame 25 and can slide and adjust, changing the position of the limiting unit 21 as a whole in the first track frame 24 and the second track frame 25. After adjusting to the appropriate position, the pressing seat 36 is released. At this time, the elastic limiting telescopic block 33 returns to its original position and can limit with the second track frame 25 to perform the limiting and locking work.

[0043] The gear 11 is rotatably connected to the fixed combination connecting rod 37, the puncture needle 6 is connected to the central groove of the adapter block 16, the hinge shaft 13 is fixedly connected to the hinge mating rod 28, the fixed hinge seat 26 is fixedly connected to the fixed platform 22, and the fixed platform 22 is fixedly connected to the limiting frame 5 through the adapter fixing block 23.

[0044] The trigger seat 40 pulls, causing the wire rope 38 to move, which in turn causes the half-tooth disc 31 to move upward. The half-tooth disc 31 meshes with the cooperating gear 11. The limit of the cooperating gear 11 is eliminated by pulling. The rotating connecting rod 18 and the telescopic adjusting rod 12 are rotated. The first connecting oil pipe 35 and the fixed combination connecting rod 37 slide on the first track frame 24. The elastic limit telescopic block 33 is limited and connected to the second track frame 25.

[0045] The working principle is as follows: When in use, the second adhesive tape 3 is first wrapped, and then the first adhesive tape 1 and the second adhesive tape 3 are bonded together to limit the position. The rubber tape 2 can be stretched. The second adhesive tape 3 is equipped with a limiting frame 5. The limiting frame 5 is in a horizontal state. The puncture needle 6 is adjusted by the auxiliary adjustment component 7.

[0046] First, press to trigger the press seat 36, causing the press seat 36 to push the oil, causing the second hydraulic seat 34 at the top of the first connecting oil pipe 35 to extend, changing the position of the elastic limit telescopic block 33. At this time, the elastic limit telescopic block 33 is not limited with the second track frame 25 and can slide to adjust, changing the position of the limit unit 21 as a whole in the first track frame 24 and the second track frame 25. After adjusting to the appropriate position, release the press seat 36. At this time, the elastic limit telescopic block 33 resets and can limit with the second track frame 25 to perform the limit locking work.

[0047] Afterwards, the user pulls the trigger seat 40, which causes the wire rope 38 to stretch on the mating connecting seat 39. The wire rope 38 can move the semi-toothed disc 31 longitudinally, so that the semi-toothed disc 31 is no longer engaged with the mating gear 11. At this time, the user rotates the telescopic adjustment rod 12, which rotates on the fixed combination connecting rod 37 through the mating gear 11 to adjust the angle position. Then, the user releases the trigger seat 40. At this time, the first hydraulic seat 30 controls the semi-toothed disc 31 to reset, so that the semi-toothed disc 31 engages with the mating gear 11 and limits the mating gear 11. At this time, the mating gear 11 cannot rotate.

[0048] When the telescopic adjustment rod 12 is adjusted, the support unit 20 is adjusted accordingly. The hinged rod 28 is connected to the hinge shaft 13. The change in the position of the hinge shaft 13 drives the hydraulic driven rod 27 to telescopically adjust accordingly. At the same time, the hydraulic driven rod 27 can rotate and cooperate through the fixed hinge seat 26 at the bottom to achieve angle cooperation support work. The adapter fixing block 23 is pressed and fixed with the limiting frame 5 to facilitate installation work.

[0049] Users can adjust the length of the telescopic adjustment rod 12 by pulling up the top of the telescopic adjustment rod 12 to change its length and adjust it to a preset position;

[0050] Next, the puncture needle 6 is inserted into the adapter slot 16 for puncture treatment. The above steps can be adjusted again to facilitate puncture. After puncture, the screw sleeve 14 is rotated to remove the squeezing contact between the screw sleeve 14 and the second docking shaft 19. At this time, the first docking shaft 17, the second docking shaft 19 and the adapter slot 16 can be separated, which facilitates the disassembly of the other parts of the auxiliary adjustment structure 4. The adapter slot 16 can fit the skin and is fixed with medical tape to complete the work.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultrasound-guided multi-degree-of-freedom adjustable auxiliary device for vascular puncture, characterized in that: It includes a first bonding strip (1), a rubber strip (2) and a second bonding strip (3). The first bonding strip (1) is provided on one side of the rubber strip (2), and a limiting frame (5) is fixedly connected to the other side of the rubber strip (2). The second bonding strip (3) is provided at the lower end of the limiting frame (5), and an auxiliary adjustment structure (4) is fixedly provided at the upper end of the limiting frame (5). The auxiliary adjustment structure (4) is used for multi-angle adjustment of the puncture needle (6). The puncture needle (6) is connected to the connecting unit (10). The telescopic adjustment rod (12) changes the height of the puncture needle (6). The fixed combination connecting rod (37) drives the telescopic adjustment rod (12) to adjust laterally, changing the lateral position of the puncture needle (6). The gear (11) is used to fix the combination connecting rod (37) to rotate and connect, changing the angle of the puncture needle (6). The half-tooth plate (31) limits the position. The support unit (20) is used for the support and protection of the telescopic adjustment rod (12). The connecting unit (10) adopts a separable design. The auxiliary adjustment structure (4) includes a puncture needle (6) and an auxiliary adjustment component (7). The puncture needle (6) is inserted into the upper limit of the auxiliary adjustment component (7), and the puncture needle (6) can slide and adjust on the auxiliary adjustment component (7). The auxiliary adjustment component (7) includes a support mechanism (8) and a control mechanism (9). The control mechanism (9) is rotatably connected to the support mechanism (8). The support mechanism (8) includes a connecting unit (10), a mating gear (11), a telescopic adjustment rod (12), and a hinge shaft (13). The telescopic adjustment rod (12) is fixedly mounted on the mating gear (11). The upper end of the telescopic adjustment rod (12) is hinged to the connecting unit (10). The middle part of the telescopic adjustment rod (12) is fixedly mounted with the hinge shaft (13). The connecting unit (10) includes a screw sleeve (14), an insert rod (15), and an adapter slot (16). One side of the adapter slot (16) is inserted into the first docking shaft (17), and the other side of the adapter slot (16) is inserted into the second docking shaft (19). The adapter slot (16) is also fixedly provided with the insert rod (15). The insert rod (15) is screwed by the screw sleeve (14) so ​​that the insert rod (15) is limited and fixed to the second docking shaft (19). A rotating connecting rod (18) is fixedly connected to the first docking shaft (17). The control mechanism (9) includes a fixed platform (22) and an adapter fixed block (23). The adapter fixed block (23) is fixedly provided at the lower end of the fixed platform (22). A first track frame (24) is fixedly connected to the upper end of the fixed platform (22). A second track frame (25) is fixedly connected to the upper end of the first track frame (24). A limiting unit (21) is slidably provided on the first track frame (24) and the second track frame (25). A support unit (20) is fixedly connected to the center side end of the fixed platform (22). The limiting unit (21) includes an arc-shaped guide frame (32) and a fixed combination link (37). The center of the arc-shaped guide frame (32) is fixedly connected to the fixed combination link (37). The front end of the fixed combination link (37) is provided with a first connecting oil pipe (35). A pressing seat (36) is telescopically connected to the first connecting oil pipe (35). The upper end of the first connecting oil pipe (35) is connected to a second hydraulic seat (34). The rear end of the second hydraulic seat (34) is telescopically connected to an elastic limiting telescopic block (33).

2. The ultrasound-guided vascular puncture multi-degree-of-freedom adjustable auxiliary device according to claim 1, characterized in that: The support unit (20) includes a fixed hinge seat (26), a hydraulic driven rod (27) is hinged on the fixed hinge seat (26), and a hinge mating rod (28) is hinged on the hydraulic driven rod (27).

3. The ultrasound-guided vascular puncture multi-degree-of-freedom adjustable auxiliary device according to claim 2, characterized in that: The top of the arc-shaped guide frame (32) is fixedly connected to an adapter block (29), and a first hydraulic seat (30) is fixedly installed on the adapter block (29). The lower end of the first hydraulic seat (30) controls the extension and retraction adjustment of the half-tooth disc (31), and a steel wire rope (38) is provided on the first hydraulic seat (30). The lower end of the steel wire rope (38) is directly connected to the half-tooth disc (31), and the other side of the steel wire rope (38) is connected to the mating connecting seat (39). The steel wire rope (38) is fixed to the trigger seat (40).

4. The ultrasound-guided vascular puncture multi-degree-of-freedom adjustable auxiliary device according to claim 3, characterized in that: The mating gear (11) is rotatably connected on the fixed combination connecting rod (37), the puncture needle (6) is connected to the central groove of the adapter block (16), the hinge shaft (13) is fixedly connected to the hinge mating rod (28), the fixed hinge seat (26) is fixedly connected to the fixed platform (22), and the fixed platform (22) is fixedly connected to the limiting frame (5) through the adapter fixing block (23).

5. The ultrasound-guided vascular puncture multi-degree-of-freedom adjustable auxiliary device according to claim 4, characterized in that: The trigger seat (40) is pulled up, which drives the wire rope (38) to move, so that the wire rope (38) drives the half-tooth disc (31) to move up. The half-tooth disc (31) meshes with the cooperating gear (11). The limit of the cooperating gear (11) is eliminated by pulling up. The rotating connecting rod (18) and the telescopic adjusting rod (12) are rotated. The first connecting oil pipe (35) and the fixed combination connecting rod (37) slide on the first track frame (24). The elastic limit telescopic block (33) is limited and connected to the second track frame (25).

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